Sleep doesn't work on my iBook G4 either. It used to work in Feisty.
One strange thing I've noted is that when the machine goes to sleep,
after the LED starts "breathing" (fading in and out to show the machine
is asleep), the LCD backlight turns on.
Ben, I haven't been able to get your workaround to work for me yet, but
I'll keep fiddling with it a bit more. Problem is there's never really a
convenient time to do the kind of stuff which requires constantly
crashing/rebooting the computer. :(
I think the gnome-power-manager is handling the sleep via hal, which
should mean that /usr/lib/hal/hal-system-power-pmu is invoked to use the
PMU ioctl to cause sleep. If that's the case, should the APM emulation
module still be required? It is loaded on my iBook, but my install is
pretty crufty because I've been through many dist-upgrades over the last
few years.
** Changed in: ubuntu
Status: New => Confirmed
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[gutsy] sleep on powerbook crashes
https://bugs.launchpad.net/bugs/144305
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